CN209818800U - Novel four-channel check valve - Google Patents
Novel four-channel check valve Download PDFInfo
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- CN209818800U CN209818800U CN201920604794.0U CN201920604794U CN209818800U CN 209818800 U CN209818800 U CN 209818800U CN 201920604794 U CN201920604794 U CN 201920604794U CN 209818800 U CN209818800 U CN 209818800U
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- valve seat
- exhaust port
- polytetrafluoroethylene
- exhaust
- compressor
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Abstract
A novel four-channel check valve is composed of a valve seat, an exhaust port and a polytetrafluoroethylene ball which are fixedly assembled by screws. The valve seat is a cylinder, four conical exhaust passages are axially arranged at 90 degrees, and the circumferential diameter of the valve seat is the same as the distribution circle of the discharge port of the static disc of the four-vortex air compressor. The exhaust port is also a cylinder with the same diameter as the valve seat, 4 groups of small holes are arranged on one axial end face of the exhaust port in 90 degrees and used for exhausting and blocking polytetrafluoroethylene balls, and the circumferential diameter of the exhaust port is the same as that of the four exhaust ports on the valve seat. Four polytetrafluoroethylene balls are assembled respectively in four toper passageways of disk seat, and when the compressor corresponds the passageway exhaust, the polytetrafluoroethylene ball was pushed out along toper passageway by gas, is blockked by the gas vent, and gas is discharged through the aperture, if gaseous backward flow, then the polytetrafluoroethylene ball is pushed back to the air inlet of disk seat, and the gas of cloudy no-go back flows into the compressor.
Description
Technical Field
The utility model relates to an automobile manufacturing technical field especially relates to a novel special four-channel check valve of scroll compressor.
Background
Due to the development of a hydrogen fuel cell automobile, the requirement for low-pressure large-air-volume oil-free compressed air is provided, and a suitable compressor is manufactured on the basis of the existing single-vortex oil-free air compressor, if a single vortex structure is still adopted, the air volume is increased, and only the height of a heightened vortex tooth is increased, and the turning radius is increased. The turning radius is increased, the size of the frame must be increased, the overturning moment is increased by increasing the vortex teeth, and the requirements on the machining tool are greatly improved. The three-vortex structure solves the problem that the vortex oil-free air compressor cannot realize large flow, and the maximum volume flow can reach 6m 3/min. In order to provide a high-flow, low-pressure and pure oil-free compressed air suitable for a fuel cell, no exhaust check valve is available in the conventional four-scroll air compressor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a novel four-channel check valve.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a novel four-channel check valve comprises a valve seat (1), an exhaust port (2), a polytetrafluoroethylene ball (3) and a fixing screw (4);
the valve seat (1), the exhaust port (2) and the polytetrafluoroethylene ball (3) are assembled through the fixing screw (4); the valve seat (1) is a cylinder, four conical exhaust passages are axially arranged at 90 degrees, and the circumferential diameter of the valve seat is the same as the distribution circle of a static disc discharge port of the four-vortex air compressor; the exhaust port (2) is also a cylinder with the same diameter as the valve seat (1), 4 groups of small holes are arranged on one axial end face of the exhaust port in 90 degrees, and the circumferential diameter of the exhaust port is the same as that of the four exhaust ports on the valve seat (1); the four polytetrafluoroethylene balls (3) are respectively assembled in the four conical channels of the valve seat (1), when the compressor exhausts air corresponding to the channels, the polytetrafluoroethylene balls (3) are pushed out by air along the conical channels and blocked by an exhaust port, the air is exhausted through the small holes, when the air flows back, the polytetrafluoroethylene balls (3) are pushed back to an air inlet of the valve seat, and the negative gas flows back into the compressor; the four polytetrafluoroethylene balls (3) move back and forth in respective channels due to the working cycles of the four scroll compressors, so that the gas is discharged to an exhaust port in a single direction and is delivered into a gas transmission pipeline after being converged.
The utility model has the advantages that: the device can be suitable for four-channel check valves of four scroll compressors, and has the advantages of compact structure and small pressure loss.
Drawings
Fig. 1 is a right cross-sectional view of the novel four-channel check valve of the present invention.
Fig. 2 is a side view of the novel four-way check valve of the present invention.
Fig. 3 is a rear axial side view of the novel four-way check valve of the present invention.
Fig. 4 is an axial exploded view of the novel four-way check valve of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, a novel four-channel check valve comprises a valve seat 1, an exhaust port 2, a polytetrafluoroethylene ball 3 and a fixing screw 4.
The four-channel check valve is formed by assembling a valve seat 1, an exhaust port 2 and a polytetrafluoroethylene ball 3 by using a fixing screw 4. The valve seat 1 is a cylinder, four conical exhaust passages are axially arranged at 90 degrees, and the circumferential diameter of the valve seat is the same as the distribution circle of a static disc discharge port of the four-vortex air compressor. The exhaust port 2 is also a cylinder with the same diameter as the valve seat 1, 4 groups of small holes are arranged on one axial end face of the exhaust port at 90 degrees and used for exhausting and blocking the polytetrafluoroethylene ball 3, and the circumferential diameter of the exhaust port is the same as that of the four exhaust ports on the valve seat 1. Four polytetrafluoroethylene balls 3 are assembled respectively in four toper passageways of disk seat 1, and when the compressor corresponds the passageway exhaust, polytetrafluoroethylene balls 3 are pushed out along the toper passageway by gas, are blockked by the gas vent, and gas is discharged through the aperture, if gaseous backward flow, then polytetrafluoroethylene balls 3 is pushed back to the air inlet of disk seat, and the gas backflow of cloudy end is into the compressor. The four polytetrafluoroethylene balls 3 move back and forth in respective channels due to the working cycles of the four scroll compressors, so that the gas is discharged to the exhaust port in a single direction and is delivered into the gas transmission pipeline after being converged.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (1)
1. A novel four-channel check valve is characterized by comprising a valve seat (1), an exhaust port (2), a polytetrafluoroethylene ball (3) and a fixing screw (4);
the valve seat (1), the exhaust port (2) and the polytetrafluoroethylene ball (3) are assembled through the fixing screw (4); the valve seat (1) is a cylinder, four conical exhaust passages are axially arranged at 90 degrees, and the circumferential diameter of the valve seat is the same as the distribution circle of a static disc discharge port of the four-vortex air compressor; the exhaust port (2) is also a cylinder with the same diameter as the valve seat (1), 4 groups of small holes are arranged on one axial end face of the exhaust port in 90 degrees, and the circumferential diameter of the exhaust port is the same as that of the four exhaust ports on the valve seat (1); the four polytetrafluoroethylene balls (3) are respectively assembled in the four conical channels of the valve seat (1), when the compressor exhausts air corresponding to the channels, the polytetrafluoroethylene balls (3) are pushed out by air along the conical channels and blocked by an exhaust port, the air is exhausted through the small holes, when the air flows back, the polytetrafluoroethylene balls (3) are pushed back to an air inlet of the valve seat, and the negative gas flows back into the compressor; the four polytetrafluoroethylene balls (3) move back and forth in respective channels due to the working cycles of the four scroll compressors, so that the gas is discharged to an exhaust port in a single direction and is delivered into a gas transmission pipeline after being converged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920604794.0U CN209818800U (en) | 2019-04-29 | 2019-04-29 | Novel four-channel check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920604794.0U CN209818800U (en) | 2019-04-29 | 2019-04-29 | Novel four-channel check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818800U true CN209818800U (en) | 2019-12-20 |
Family
ID=68882131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920604794.0U Active CN209818800U (en) | 2019-04-29 | 2019-04-29 | Novel four-channel check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4365451A1 (en) * | 2022-11-02 | 2024-05-08 | Danfoss A/S | Check valve and hydraulic gerotoror geroler machine |
-
2019
- 2019-04-29 CN CN201920604794.0U patent/CN209818800U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4365451A1 (en) * | 2022-11-02 | 2024-05-08 | Danfoss A/S | Check valve and hydraulic gerotoror geroler machine |
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